13285663 has 2 divisors, whose sum is σ = 13285664. Its totient is φ = 13285662.

The previous prime is 13285633. The next prime is 13285709. The reversal of 13285663 is 36658231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13285663 - 2¹³ = 13277471 is a prime.

It is equal to p₈₆₆₆₁₇ and since 13285663 and 866617 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13285603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6642831 + 6642832.

It is an arithmetic number, because the mean of its divisors is an integer number (6642832).

Almost surely, 2^13285663 is an apocalyptic number.

13285663 is a deficient number, since it is larger than the sum of its proper divisors (1).

13285663 is an equidigital number, since it uses as much as digits as its factorization.

13285663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 13285663 is about 3644.9503425973. The cubic root of 13285663 is about 236.8432856922.

The spelling of 13285663 in words is "thirteen million, two hundred eighty-five thousand, six hundred sixty-three".